This happened to me. I have long layers, and I was breaking out wherever my hair touched the side of my face. The culprit was Ouidad's Tress F/X (wheat germ oil). If I were you, I would go to the Sage skincare site and compare their list to the ingredients of your hair products, and see if you have any 4 or 5 ingredients. If you do, take a break from those products and see if it helps.
here's the site: http://www.zerozits.com/Articles/article6.htm